Weatherby 338 RPM

remington jim

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We’re proud to announce that the sixteenth Weatherby® Magnum cartridge has gained acceptance into the SAAMI Standards. Several years in the making, the 338 Weatherby Rebated Precision Magnum (WBY RPM) is the latest in a long line of innovative Weatherby cartridges and delivers maximum big-bore performance in our smaller six-lug Mark V® action. An ideal backcountry large game chambering, field testing of the 338 RPM has shown it to be a sledgehammer on North America’s biggest game, including elk, bear and moose.

With the demand for ammunition at an all-time high, production of Weatherby factory Select and Select Plus ammunition has never been greater. In the interest of serving our current customers and providing as much ammunition as possible in our existing chamberings, our objective is to continue to keep Weatherby Magnum ammunition flowing to customers as quickly as possible. With our focus fixed firmly on current products, expect more information and specific product launches regarding the 338 WBY RPM further down the road.

The All NEW 338 WBee RPM ! Should be a GREAT one just as the 6.5 RPM has proved out to BE ! d:h:

No ammo or Brass avail BUT heres the Cartridge ! WTF ? :rolleyes: LOL
 
For the niche market of 6 lug weatherby actions or kimber 84l rifle enthusiasts it’s a welcomed round. The medium bore options including wildcats that fit in those actions are slim and low powered. Past those guys there are better and more economical options.
 
The 84L is a long action, and yes Conor it will house the 338-06

Jury is still out on whether an 84 should be chambered for 284 based cartridges (aka weatherby RPM)

Some gunsmiths do it, but the guy who designed the action condemns it.
 
Why wouldn't it be suitable for 284 based cartridges? - dan

On another forum there was a member claiming to be the head engineer for Kimber. He said that the action was scaled down to minimum dimensions for a standard 308/30-06 based cartridges and the 284 wouldn’t leave thick enough chamber walls.

I’m no engineer or gunsmith, just relaying what was discussed many times over on another gun forum
 
On another forum there was a member claiming to be the head engineer for Kimber. He said that the action was scaled down to minimum dimensions for a standard 308/30-06 based cartridges and the 284 wouldn’t leave thick enough chamber walls.

I’m no engineer or gunsmith, just relaying what was discussed many times over on another gun forum

Please give directions to the post. I’ve seen a 84l in 6.5x55ai. While not the .50 of 284 it has a larger .480 rim and base.
 
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